Fornia



June 4, 1929.

O. B. DREUSIKE SWING SASH ADJUSTER Filed Sept. 25, 1926 A TTORNE YS.

Patented June 4, 1929.v

UNITED STATES PATENT OFFICE.

OTTO B. DREUSIKE, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO UNITED STATES METAL PRODUCTS CO., OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF CALI- FORNIA.

SWING-SASH ADJUSTER.

Application filed September 23, 1926. Serial No. 137,192.

' especially to such devices which combine a sliding and pivotal action and are provided with a sliding shoe which guides a minor extension of the sash one side of the pivot along the window frame while the major extension swings away romthe frame in opening the window.

The object of myV invention is to provide automatic means on such swingingly mounted sash which will partially lock the sash in a predetermined open condition, or that is, will provide a delinit-e position o't greater stability at which the sash will usually ybe permitted to remain by anyone opening the sash, so that most of the windows in a building when opened for ventilation will bc opened to the same angle, and thus a building equipped with such sash will present a neater appearance from the outside when many windows are opened, as against the present appearance where such swingingly mounted sash projec' at all angles from a building, thereby creating a most unsightly appearance.

In the drawings hereto I have shown my invention as applied. to a common it'orm oit' sliding),` shoe window mounting and have illustrated it in place on steel 'trarne and sash tho it to be understood that its use on any construction of sash or with other specilic -form oit swinging sash mountings is optional.

The views olf thedrawings show in Fig. l a vertical section ot a portion ot a steel sash and adjacent part of the window frame iitted with sliding shoe type mounting embracing my improvement. Fig. 2 is a plan view of the sash portion et 1 and Fig. 3 is a rear elevation of the sash portion and a section of the frame portion.

In further detail the figures show at l the sido wall ot window trame. with a sash 2 swingingly mounted thereon, in this case the sash being or' the transom variety swinging outwardly at the bottom,

The pivotal mounting of the sash which is supposed to be repeated at opposite edges oi the sash, tho only one mounting is here shown, comprises a lever 3 pivoted to the trame at 4 andto the sash at 5 and the upper end of the sash pivoted at 6 to a shoe 7 adapted to rictionally engage. and slide along a channel formed by the frame 1 so that in swinging the lower end of the sash outwardly the action ot the link 3 will pull the shoe and upper end of the sash downwardly.

Y The pivot 6 is a rod extended so as to be slidable in the arms of a barchet- 8 secured to the sash, and the shoe is secure-d to the end of the pivot rod and maintained under resilient pressure against the frame channel by means of a heavy spiral spring 9 reacting between an arm of the bracket and a shoulder 6 on the rod. y

Thus far, this is known construction and would provide no especial position of the sash :tor ventilation as the shoe is free to slide downwardly until the sash projects at substantially right angles to the frame.

However, I provide a resilient extension from the shoe in the i'orm of a flat spring l() soeur-ed to the. shoe as by a screw 1l and the spring is formed with a rounded shoulder l., and which is arranged to press against the sides of the frame conjointly with the shoe tho with'less pressure since it is of a predetermined resiliency and theretoreable to act independent ot the strong spiral spring E) whichiactuates the shoe.

At some predetermined point along the frame channel in which the shoe slides is formed a recess or indentation as at 13, in the present instance by means of a hole punched through the inner steel layer 1 of the trame but closed over by the second or outer steel member l oit the :trame wh ich inthe steel construction under consideration are welded to gether as a unit to make the complete trame.

This recess 13 is not large enough 'for the shoe 7 to fall into it but permits the shoe passing thereover. The rounded shoulder 12 ot spring 10, however, will snap into it in passing and also snap out of it if a littleextra force be applied to operating the window sash.

However, since a decided click will be noticed by a person opening the windows when this point is reached, and also since the sash is more stable and not easily displaced from this point it is manifest that most windows when opened will be permitted to remain at this point of greatest stability and with the result ot giving most of the windows opened for ventilation the same. angular extension from the building.

I prefer to arrange an auxiliary spring or resiliently actuated device such as the small spring 10 rather than round the edges of the slice itself so that it could fall into the depression 13, for the reason that the powerlul spring action usually required on the shoe would be too great andmale it too ditticult to swing the sash from the intermediate position as determined by the depression, besides would cause undue wear on rthe shoe in rising in and'out of the depression even though -the edges of the same were rounded.

lt is ot course evident to any skilled niechanic, without further illust-ration, that instead ot rounding the shoulder l2 of the spring the edges ot the depression or recess i3 may be rounded, or both may be rounded.

it is further evident that the mountings as described are equally applicable to transoms swinging inwardly or outwardly, or to the easement type ot' sash as they only ditler in the `direction or' swinging; also,`that while l show but one embodinient et the invention, any modilications thereof coming within the scope ot' theinvention are intended to be covered by the appended claims.

l. A. sash of the outwardly swinging type a depression in said guide and an auxiliary device secured to and projecting in advance ot' the shoe also slidabl'e along said'guide and resiliently actuated so as to spring into said depression, said depression being in an intermediate positionalong theguide so as to permit adjustment of the sash beyond it in both directions and when engaged by said at the other end with a guiding device to retain the sash in intermediate angularly open position.

3.*A swingingly mounted sash of the character described provided with a guiding shoe slidable along a guide on the window trame as the sash is swung, a spring resiliently urging said shoe against said guide, a depression in said guide and a' second spring projecting tromrthe shoe arranged with a portion to bear against the guide and enter and leave the depression in passing thereover when swinging the sash. Y 4. A swingingly mounted sash oi the charaeter described provided with a shoe slidable along a guide on the window trame, means tor resiliently forcing said shoe againstthe guide, interior resilient means associated with the shoe also pressing` against said guide, and adepression in said guide into which said interior resilient means is adapted to enter and leave upon passing thereover in swinging the sash.

5. In a swingingly mounted sash of the character described, a window trame, a link pivotally connecting one end ot the sash with the trame, a guide on the frame, a shoe in the sash slidable along the guide as the sash is swung, said shoe being secured to a rod aX- ially slidable in a bracket secured to the sash, a. spring arranged to `torce said shoe against the guide, and a tiat spring projecting from said shoe and having means thereon adapted to resiiiently engage a depression in said guide.

6. A swinging window sash mounting including a sash and a trame to which the sash is pivotally connected to swing open and closed, a friction slice attached tothe sash and slidable along the window frame as the sash is swung, and means on said traine localized at one intermediatfU point only in the travel of said shoe along said trame arranged to lering` increased trictional resistance to the sliding of the shoe at said point.

@TTG B. DREUSIKE. 

